Lagoon Nebula

[ZiHao]

35 x 1 minute of Lagoon Nebula under Bortle 8 skies taken with stock D5300, SW150/750 and EQ3 Pro. Had to say the gradient in the image was really bad because of the lazy and forgetful me that took the flats in a different camera orientation plus the possibilities of light leaking into the setup. Thanks to @alacant for giving the advice on stacking and AstroBackyard's Astrophotography Tutorial: How to Remove Gradients in Photoshop. Although the way of removing the gradient seems extremely unusual to me, but it works! I believe a lot of the advanced softwares like Pixinsight or plugins such as GradientXTerminator would solve the problem very easily.

 

 

Edited May 13, 2020 by ZiHao

[Chris33benoit]

Nice picture of M8, beautiful.  Can I ask how many lights/darks/flats did you use for the Nebula?  Do we need equal amount of darks and lights ?  Thanks !

[ZiHao]

21 hours ago, Chris33benoit said:

Nice picture of M8, beautiful.  Can I ask how many lights/darks/flats did you use for the Nebula?  Do we need equal amount of darks and lights ?  Thanks !

Thanks.

35 lights and IIRC, 20 flats and no darks were taken. Generally people only take around 30 darks. I think you should try with maybe more/less darks or even without them to stack with your raws to see how much it helps the image.

[Chris33benoit]

Awesome thanks for the answer!  :)  This is the one I got so far.  D3200 NYX tracker, no filter, darks and lights.